Bag closing and tying machine.



I. IESSEN. BAG GIIISIIIG /IIIII 'IYIIIG IIIIACIIIIII E.

En n Q APPLICATION FILED IPR. I3, I9I5 I a A; n I

Paieme Aug. 229, 19N.

I3 SHETS-SHEET l.

J. IESSEN.

BAG -CLoslNG ANDTYlNG MACHINE.

APPLICAUON FILED APR. T3.. i915.

Patented Aug. 29, 19M

MQQ

j. JESSEN.

BAG CLOSING AND THNG MACHINE.

APPUCATION FIL-E APRT i3, 15H5.

Patented Aug. 29, w16'.

I3 SHEETSSHEET/3.

wmwwaf:

I. IESSEIII.

BAG CLOSING AND TYING PIICHINE.

Paletedug. 29, 1916.

I3 SHEETS-SHEET 4.

APPLICATION FILED APR-131 I9I5.

WVWWW .L )ESSEN BAG CLOSING AND TYING MACHINE.

APPLISATION FiLED PR.13,195. a

Pamed Ang; 29, mit.

13 SHEETSWSHEET 5.

hmmm' J. MESSEN.

BAG CLOSING AND TYING MACHINE.

APPLICATION FILED APR. 3, I9l5.

13 SHEETS-SHEET 6 Paente Aug. 29, 1916.

i3 SHEETS-SHEET 7.

J. JESSEN.

BAG CLGSING AND TYING MACHINE. APPLICATION man APR. 13, 1915.

l Patented Aug. 29, 19H5 I/l//T/VESSES j, JESSEN BAG-CLOSING AND TYING MACHINE.

APPLICATION FILED APR.13\1915.

Patented Aug. 29, 1916.

@www

1'3 SHEYETSAHEET e.

J. IESSEN.

BAG CLOSING AND TYING laCHHHi.

APPLICATION man APR.13. 1915.

' Patented Aug. 29, 1916.

.3 SHEETS-SHEE I O- 20m y 202 IM 74 205 f 1. igssEN. BAG CLOSING AND TYING IJIACHIN'EL PPLICATION FILED APR.13. i915- i L1 96%59., Pnt-@med Aug. 29,1916.

1. JESSEN.

BAG CLOSING AND TYING MACHINE. APPLICATION min Min. la. 1915.

Patented Aug. 29, 1916.

13 SHEETS-SHEET I2- /Nf/vrof JAME@ @MEM l. ESSKN.

BAG VCLOSING AND THNG MACHINE. APPLICATION f|LED'AP'.13. 1915.

Pmnf'ed Aug. 29, 19m.

13 SHEETS-SHEET 13.

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wrm/70H www Jssfw citiamo earns JAMES J'ESSEN, MINNEAPOLS, MINNESOTA, ASSIGNR TO HENRY OB. `.-IA.R] I1\TGr,`

i 0F MINNEAPOLIS, MINNESOTA.

BAG CLOSING AND TYING MACHINE.

Specification of Letters Patent.

'Patented Aug. 29., 1911i.

Application tiled April 13, 1915, Serial No. 21,020.

To all 'whom t may concern: l Be it known that' I, JAMES JESSEN, a citizen of the United States. residing at Minneapolis, in the county of Hennepin and State of Minnesota, have invented certain new and. useful improvements in Bag Closingv and Tying Machines, of which the following is a specification. Y

My invention `relates to bag closing and tying machines and has for its object to provide machines which will close and compact the mouth of the sack, lay loops of cord about the mouth of the sack, form said cords into a knot and tighten the same by the action of the cord-laying member,- together with means for gripping and severing the cord as the same is being moved in its final laying operation. The invention also includes means for tensioning and holding the cord to permit the cord-laying member to take up slack and tighten the knot.

rl'he full objects and advantages of my invention will appear in connection with the del ailed description thereof and arc particularly pointed out in the claims.

ln the drawings, illustrating` the application oi' my invention in one form. Figure 1 is ay top plan view of a machine embodying the .invention F 2 is a front elevation with the lower portion ot' the machine broken away. Fig. 3 is a side elevation viewed from the back. F ig. 4 is a sectional plan view online .fr--fr of Fig. 2. Fig. 5 is a sectional detailof some parts partially shown in Fig 4. Fig. 6 is a sectional plan, view ot the machine taken on the feeding plane of the sack months. Fig. 7 is a' sectional elevation on line B-B of Fig. 1. Fig. iw is a sectional view on line EME of Fig. l. Fig. i) is au exposed detail view of some ot the parts shown in Fig. S. Fig. 10 is a .sectional view on line C-C of Fig. 1. Fig. ll is a detail view oi' the trip for the starter mechanism. Fig. 1Q is a. sectional view on line A-A of Fig.` 1. Fig. 13 is a sectional view on line -:r of Fig. 1. Fig. li is a sectional view on line A-A of Fig. 2. Figs. 15 andlG are-detail views of the cordgripping and cutting mechanism. Figs. 17, 1S. 19 and 20 are sectional views on an enlarged scalev of line .mj-:r of Fig. 15 showing the parts in diierent positions.

a platform 4 and pulleys 5 and 6 over which runs an endless belt 7, the pulley 5 being driven' by a worm S splined on a vertical shaft i) which is driven as will be hereinafter pointed out. The worm 8 meshes with a worm wheel 10 on the shai't ll, ot pulley The belt 'T upon platform l. comprises a feeding means tor carrying the sacks through the tying mechanism and is adapted to loe/ raised and lowered for use with sacks .of dili'e'rent sizes by means of an endless screw l2 threaded into the slide 3 operated by a hand crank 13.

Upon the top of standards 1 and 2 is formed a table 14. Supported upon the ta.- ble l-l are various brackets and supporting members for holding the sack-tying organization and the operating means therefor. 'lhese comprise a plate 15 having secured thereto a standard 16. an extended plate 17, a standard 152 having a rectangular base 19 by which said standard is bolted to the table 1l., a standard 20 for supporting certain gear-driving mechanism and a standard E21 which with standard 1S provides the main support for the cam members and principal driving elements oi' the tving mechanism. Plates 15 and 1T. are in a common plane and provide between the saine a passageway having an expanded bevel-sided mouth 22, a.4

contracted throat 23. an enlarged portion 2e and a restricted end chamber 25. all as best shown in l `igs. t and G. The sacks upon the moving platt'orin 7 have the upper portions thereof fed into the beveled opening 22 and restricted portion 23 of this passageway. when they are engaged by crimping rollers 2G and 27. Roller 26 is on a vertical shaft 28 hung and journaled in'an extension 29 et the standard 18, and roller 27 is ona sleeve 30 similarly journaled on extension 29, said sleeve surrounding a shaft 31 which extends loosely through said sleeve and is journaled at its lower end in plate 15. Sleeve 30 has thereon a spur gear 32 which meshes with a spur gear'33 on shaft 28. Shaft 28 is provided with a pinion 33 which meshes with a spur gear `34 journaled upon shaft 31. Shaft 28 is also provided with a bevel gear 35 meshing with a bevel pinion 36 on a shaft 37 journaledjn bearings on the standards 18 and 21, which shaft is prowhich a dog 41 is secured in adjustable posi- 1 in Figs.`9 and 10,'which arm is held to move with drum 51 by ,y ment :with ratchetl 50, This, v yielding connection of arm Aengagement with finger 62,

tlon by means of a. pin 42 extending through apertures 43 in the plate 40. When the dog 41 is caused to revolve with gear 34 it will engage the notched end 44 'of a slide rod 45.

to the-other end of which is secured a trip piece 46 slidably mounted on the shaft 37.

-The shaft 37 has thereon a pinion 47 which meshes with a'spur gear 48 mounted on the .shaft 49. Loose o n-the cam shaft 49 on the inner rim of spur gear 48 is a ratchet 50. The main cam drum 51 has a hub sleeve 52 extended through the gear 48. Mounted on said sleeve 52is an arm 53, shown in detail means of springs 54, 55 on each side of the arm seated in 'lug .pockets 56 secured to-the end of drum 51.- Upon a pin 57 onvarm 53 is journaled a dog 59 normally actuated by a spring 60 to lbring the dog 59 into engagement with the ratchet 50, said spring being connected with the dog and with the eye piece 61 on the'arm 53. `Fast with the dog 59 is a finger 62` which isadapted to engage a finger 63 pivot,

ed at'64 to van extension 65 of the piece 46 and .yieldingly held in' engagement with a 1ip`66 on the piece 46 by a spring 67 held in a socket 68 attached to piece 46. From ,the above it will `be seen that when the rod 45 is slid by the dog 41 it carries with it the piece 46 and withdraws the finger 63 from which permits spring toi-.threw the dog 59 into engagecauses rotation of the cam drum andialso of a gear 69 fasti4 on the cam sleeve 52. When, however, thef'cam has completed one revoluyieldingly through the sition. In this position,

ytion the finger 62 will engage finger 63,

which byoperation of spring70 on slide rod 45 has been restored together with piece 46 to its initial position immediately upon the release of said rod when the dog 41 has passed out ofthe notch 44. This engagement of finger 62 with finger 63 withdraws the dog 59 from the ratchet 50 and terminates an operation of ythe cam shaft. The dog 41 is caused to rotate with gear 34 through the feed of the sacks into the machine by another dog 71 pivoted to plate 40 and having connected therewith a spring 72 tending `to pull the dog 71 into engagement with ratchet 39. A projection 73 on dog'7l is normally held by a cam 74 on the end of a vertical shaft 75 which has rigidly secured thereto a curved iin er 76 normally positioned so ,as to extend across the contracted throat 23 through which the sack mouths are driven by the crimping rollers 26, 27. When the sack is finally forced through the throat the displacement of finger' 76 rocks shaft 75 sufliciently to move the cam 74 so as to release dog 71 and connect plate 40 to rotate with gear-34. This will be through one complete revolution, cam 74 having been restored to initial position by torsion spring 74 and eifecting disconnection of dog 7l when one revolution has been completed. Owing todiierent sizes of sacks fed through the machine it is desirable to position the dog 41 so as to operate at different times relative to thefeed of the sacks, and this is accomplished Aby adjusting the dog 41 upon plate 40 through the pin 42 in the different apertures 43 provided in plate 40. The operation of the cam drum 51 and other parts and elements driven thereby is thus timed so as to permit all parts of the sack to pass through the crimping rollers before the beginning of the cam movement` which sets in operation the compacting and tying loperations. L

The shaft 9 for operating the feed belt 7 has thereon a bevel gear 77 meshing with a ,bevel gear 78 on a sleeve 79 which is loose on a shaft 80 journaled in bearings formed .on arms of standard 20. The shaft 80 is constantly driven by mea-ns of a bevel gear 81 thereon which meshes with a bevel gear 82 on the shaft 37 Splined to shaft 80 lis it clutch 83 adapted'to engage a clutch face 84 yon ysleeve 79, said clutch being normally pressed into engagement with the face by a spring '85. A clutchffork 86 engages the clutch/83 and is pivoted at 87 tota. portion of the standard 20, having an arm 88 with a roller 9 thereon which runs in a groove 90 in cani and upona 4cam portion 91 in said groove. Said cam portion has a depression 92 into which the roller 89 drops when the cam roller 5l is in its normal inoperative poas shown in Fig. 7, the clutch 83 is in engagement with clutch throat.

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face so that shaft 9 and feed belt T are being driven. The li'irst ei'l'ect thereforel ot starting the operation of cam drum 51 is to cause roller 39 to rise from depression 92 on the bevel cam surface 93 ot' the cam portion 91.y thereby throwing out clutclrr33 and stopping the movement of 'feed apron 7. rlhe next. action of the cam roller will be to compact the crimped mouth ot the sack and set the same in ,position Yfor receiving the loops of thread vfor tying' the same. As has heretofore been pointed out, the opening between plates 15 and 17 terminatesin an end chamber 25 and this is surrounded by plates 941 and 95. A pusher 96 is mounted `upon plate 17 and is guided for movement along the same by rollers 97 and 98 on the under side ot said pusher 9G. `which rollers operate respectively in slots 99 and 100 in the'plate 17. as most clearly shown in Figs. 4 and 6. The pusher 9G has an offset curved end 101 and a recessed shouldered portion 102 which is adapted to enter beneath plate 95, as

clearly indicated in Fig. 6. The two slots' 99 and 100 are parallel but separated Jfrom one another and formed with parallel branches extending; at an angle to thevinan portions of said slots and having the continuing; Walls thereof connected by curves so that the first effect ot movement of the slide will be to bring,r the curved end 101 over the throat 23 with the recessed finger portion 102 in alinement with one Wall ot said The movement of the slide 96 is effected by an arm 103 connected by link 10-1 with the slide and pivoted to a pin 105 carried hy the table 14. `Upon the pin 105v is a. tivo-armed lever, one arm 106 of which is connected by means of a bolt 107 extended throueh arm 103 and a. com ression sirinff.

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108 with said arm 103. rlthe other arm 109 of the lever carries a cani roller 110 which operates in a cam-channeled groove 111 in the cam drum 51, as heist seen in Fig. 1. This cani groove is so positioned that immediately upon the beginning of movement ot the cam drum 51 the pusher 90 is forced trom the. position shown in 1 and t to the position shown in Fig. 0. 1n the meantime a finger 112 fast on the upright shaft 3l has been oscillated 'from the position in which it is shovvn in Fig. 1 to the position shown in Fig'. 0 by a lever 113 pivotally connect-od with an arm 114 fast on shaft 31.

' Lever 113 is pivoted to an arm 115 which is pivoted to the frame member 160. and the lever 113 has a cam roller 116 operating in a ram groove 11'? in, cam drum 51. The cam groove 117 is so formedrthat `at the beginning ot' rotation of cam 51 the finger 112 is brought into the closest position indicated in Figi. 6, bei-np; held there until the termination of the revolution of cam drum hnvhen the finger is Withdrawn permitting the tight neck ot the sach; to he Withdrawn. from the enlarged portion '21. the pusher 0o being siinultaneously witl'ulrawn from its holdingposition by reason oi the formation ot' can] groove 111. By these means it will he seen that the neck ot the. sack is crimped and -forced into 70 a closely compacted nochr portion. as indicated at 113. in which condition 1t is held vduring the looping and tying operations and troni which it is released at the. termination ot' these operations.

Figs. 31 and 32 illustrate the preferred Jform ot' pusher mechanism for compacting the.' neck ot the sach. As here shown, a plate 302 is provided somewhat similar to plate v17 in its position and functions.l excepting 30 that it is of less extent and is provided with only a, single slot 303. This slot is parallel with throat 23 and is provided with an enlarged portion 30-1 at the rear end thereof,

A straight arm 305 is pivot-ally mounted dia5 rectly to the end of arm 103. which may he flattened, as indicated at 30,0, better to receive the arm 305. A boss 307 on arm 305 receives a spring 30S which engages a lug;J

309 on arm 103 and a lug 310'on pusher arm 9o 305, normally tendingr to hold said arm in its lowered position in which a roller 311 journaled in a projection 312 adjacent the end ot said arm is held in engagement with the straight edge of slot 303 parallel with 9 5.

Wall of throat In this position the arm 305 is held so that the beveled rear edge 313 of a toe 314 on said arm extends across the y throat 23 and a concaved front vedge 315 ot' said toe is positioned to engage the sack and 100 crimp the same when the pusher is actuated. The finger 112 is provided with a groove 316 and the toe 311 is provided with a channel 317 and lug 318 adapted to enter the groove 316 when'the finger 112 is brought into clos- 105 ing position and the pusher 305 is actuated,

slot 303. After the crimped sack has been fed past the toe and the pusher 305 is actuated, the concaved face 315 of said pusher operates to force the same forward in a manner similar to face 101 ot pusher 96.

As shown in Fig. 3, the cord 119 is laid 120 from a ball or spool 120 mounted upon aspindle 121 secured to upright 2. From the spool the cord extends through an eye in a guide linger 122 and into a guide channel 123 formed in an extension 124; carried by 125 standard 18, as -best shown in Fig. 14. From the end of extension 124 the cord 119 passes between tension plates 125 controlled by a thumb screw 126 and through the center of a tubular sleeve 127 to the outlet 128 of the 130 y In operation 110 35 bottom of the groove 144 has two low places 145" and 146 and when the roller 143 comes cord-'laying finger 129 which; is rigidly secured to sleeve 127,- said sleeve being jonr-Y naledf in a bracket extension 130 secured to the frame -Piece 29.. The. sleeve 127 whichl naled inthe standarls 18.and 21. The Shaft -133has-thereon a piniongf134 which meshes y with an idler spur gear 135 driven through Ijan idler-.136 attached thereto kby' the spur gear69 on the hu'b sleeve 52. The spur gear tion 300 which coperates with a corre-- 69 is a mutilated gear with a toothless porsponding toothless portion 301 of gear 136.

'- The, parts are in the position shown in Fig.

when cam drum 51 is at rest and the toothy i less portion 300 on gear 69 permits the cam i drum to be rotated suiiiciently to actuate the ncck-compacting mechanism before the beginning'of thedrive .of gear136. At the termination of thefpeck-compacting action the 7cord-laying.finger 129 is put in operation, and yis carried .through three complete revolutions while the cam drum 51 completes one revolution. As the cord 119 passes through the channel 123 it goes o ver a finger 137 which has an eye-bolt 138 actuated by a spring 139 so as toY tend to force said finger into a 'socket 140 at one side of the channel 123 and clamp the cord 119. The nger 137 is on a lever 141 pivoted at 142 intermediate its ends and having a roller 143 engaging in a 'groove 144 in cam drum 51. The

above said low places the spring 139 will draw. the finger 137 into the socket-140, thereby clamping the cord for a purpose In Figs. 6 and 25 to 30 is shown the circle which the cord-laying point 128 takes in reference to the compacted neck of the sack 118. It will be observed that this vcircle is eccentric to the center of the compacted neck, that is, the center of the circle is at one side of the ccnter of the neck. By this means, in combination with the cord-gripping mechanism aboveA described, the tightening of the knot and the loop-is eectedas will hereinafter be pointed out.

As the loops'are laid about the neck 118 they are successively crossed so that when the series of crossed loops are drawn tight and hard' they `term. what is known as the miller-*s knot. The means for crossing these loops will now be described. A shaft or pin 147 is rigidly secured parallel with the base plate'14 and extends through an anvil membcr 14Sfwhich is bolted to thc base plate 14 and has an upturned end 149, which issubstantially in the tying plane of platee 15 and 94. Pivotally moiinted on the shaft 147 is an arm 150 having an extension -151 in the forlnof a yoke straddling the anvil vplatform 14 and having a' cam roller 156 running in a cam groove 157 in the cam drum 51. By this means the hooks 152 are at the proper time withdrawn below the plane of plates 15 and 94 for final releasing of the last loop, as will later be pointed out. An arm 158 is pivotally connected intermediate its ends at 159 to a stand depending from a longitudinal frame member 160, the arm 158 having a cam roller 161 running in a'cam groove 162 on a cam drum 163 fast o n shaft 133. The arm 158 has a horizontally extended portion 164 to which are i-.cured in l spaced relation on one side thereof a pair of lifter plates 165 166, said plates being held by bolts 167 and intervening collars, as best shown in Fig. 13. The lifter plates 165, 166

are provided with lifter ends 168 which may Vbe an elevated platform-like construction, as

indicated in Figs.- 21, 22 and 23 or, as a preferred form, may have a straight extended portion 169 the surface of which runs back into a slot 170 beneath a stripper finger 171. The finger ends 169 or 168 are in one position adapted to register with the oblique inner wall 172 of the anvil projection 149. The other position of said lifter plates is brought about by the action of cam 163-causin said plates to be lifted as indicated in Figs. 21 and 24 above the horizontal plane passing through the ends of hooks 1:52. A finger 173 having on the end thereof downwardly-turned hook174 is provided with a longitudinal slot`175 by which the `finger is slidably secured between plates 165, 166 upon the two bolts-'167. The slot 175 vhas at its forward-end a' downwardly-turned vport-ion 176. It will be apparent therefore cated in Fig. 24. lSliding movement in properly timed relation is given to finger 173 by a roller 177 engaging in a notch 178 formed on the upper part'of finger 173.

The roller is carried by 'an ar'mj179 fast on a hub 180 journaled on'a pin'-181which is secured to framemember 160. Anotherarm 182 fast lon. hub 180is provided with a' cam `ro'ller183 `which runs'in a cam 'groove184 onthe cam 163.- The cam groove has a widened kportion 185. A spring186 on thehub 180- tends to turn thehub and thearni 182- incense so as to throw the linger`173 in its inost and each rotates through three complete revolutions duringr one revolution ofthe cam drum 51. During the tirst two revolutions of the cord layer and cain 163 the sliding finger 173 is moved forward as indicated in dotted lines in Fig. 21 to come above the loop of cord laid in tho hooks 152. The

litter and with it the hook" 17/1are then rocked to bring the hook 17 4 in the position shown in Fig. 22, after which the hook 171 is moved rearwardly along a groove 189 formed in the anvil end 1&9 carrying with it the loop of the cord 119 over the lifter plates 165,166 to the position indicated in Fig. 14. Thereafter the lifter plates are rocked up wardly and the hook 1711 is caused to rise to the relative positions shown in Figs. 21 and 24:, in which the loop ot" cord 119 will slide from the lifter portions 168, 169 over hooks 152 so as to be crossed over the loop of cord 119, which has again been laid back of hooks Atr the third revolution,l however,

owing to engagement of pin 187 by tin 188, which is placed on the cam drum 51 so as to come into the proper position at the third 'revolution of cam 103, the sliding linger 173 is prevented from moving forward above the loop of cord 119 (see Figs. 12 and 13) which remains in the hooks 152 until the final tightening of the tormed knot has been etl'ected and the cord running` to the sack neck .118 has been severed, when the member 150 will be rocked by the operating parts cited therewith and move the hooks below the plane oil the anvil extension 149, 'thus releasing the last loop with the sack. 1n the form of li'lter members 108 with respect to hook 174 shown in Fig. 21 the litter member-sare out away below the hook so that when said hook rises ample space will be provided to permit the loop to fall away from the hook 'and be withdrawn over the litter ends 168 and hoolts 152. In the form shown in Fig. 24 the tongue 171 above slot will positively strip the loop from the hook 174.

Means tor holdingr the end ot the thread and Jor cuttingr and i'egripping the sa me are.v

prrwidedadjacent the tying; plate. rI 'he plate 94 heretofore referred to is a shearing plate.

which is loose on the shaft 147 and pressed i along said shaft by a spring 192. as best Pivoted to shaft 147 is a. hub 190l I l h this shearing and gripping action at sul ,EL ali shown in Figs. 4 and 6. The hub 190 is in the :torin of a yoke having two portions Journaled upon shaft 147, one of said por tions comprising a bar 193 which is pivotally connected to a link 191, said linlr mi beingg)` in turn connected to an a'rni 195 tast on a hub 196 journaled on a stand 197 extending from table 14. Fast with the hub 196 is an arm 197 having a cain roller 198 running in a cain groove 199 ot' the calin drum 51 as best shown in Figs 15 and 1G. Upon the` forwardly extended portion 200 of bar 193 is rigidly secured a shear blade 201. said shear blade being Jformed `with a protruding oint 202N` as best shown in Fig. 16. The si e of shear blade 201 is pressed against the side of shearing,r plate 94: by the spring 192. Adjacent the bar 193 and pivoted to shaft 147 is an arm 203 which has an otiset forwardly-projeating portion 20-1- with a beveled point 205 above a table-like extension 20G, an intervening notch 207 being formed between the point 205 and the table 206; The table 206 is normally held firmly in contact with the under surface ot the projecting point 202 of arin 201 by means of a strong spring 208 surrounding a. bolt 209 secured to arm 203. said bolt extending,through a hier 210 onA arin 193 and the spring 208 acting between said lug and a washer or collar 211 on bolt 209. lt will thus be seen that normally the bar 201 and arm 204 will move together when actuated from cam 51 through the r-,oi'ineetion with spring 208. The bar is. however. provided with a notch 218 adapted to engage a` fixed abutment 214 secured to the plattform 14 adjacent a slot 215 formed in said plat- :torni which permits the passage. ot the bar 193 when the same is operated, Engagement of bar 203 with abutment 214 results in the oscillation ot' said har relative to bar 193 and through compression o spring' 208 this brings the pointed end 205 ot bar 201 into lowered position relative to the extieiiiity 202 of arm 201 with the result that the. cord 119 extending between cord layer 128 and the compacted neck 118 is drawn into the notch at the end ot arm 2011 above the extension 206 and below thelinfrer cxtremity 202. Immediately thereafter the rain drum 51 operates the mechanism lor rocio ing bar 193 down to initial position, which has the result of first clamping the cord siip ply running to the cord layer between theI ringer 202 an'd the table l200, as shown in Fig. 19, thereafter severing the cord by the shears 94 and 202 as shown in Fig. 17. This results in freeing, the cord which is secured to the compacted neck and has been knotted thereon and yin gripping and lioldiirgr the cord end running from the cord layer. rlhe cain groove 199 is so formed as to produce liti Ult'

ite.

lution of the cord layer. Theliftin of bar 193 and depression of the holder p ate 206y results in release ofthe cord end previouslyr gripped, and to insure that such. released end shall be immediately Withdrawn from the holding means at the moment of release. there'is provided an arm 216 pivotally secured at 217 to a lug 218 projectedfroml the arm '203. The arm 216 is normally pressed outwardly by a spring 219 seated in a pocket in said arm 216 and engaging the side of the arm 203. A screw 221 which -is fastened to arm 203 and extends loosely through an aperture in arm 216 limits the outward movement of said arm under influence of the spring. -The larrn 216 is provided with a finger 220which is u wardly beveled and receives beneath the eveled portion and around the finger the heldend of the cord 119 as clearlv indicated in Figs. 25 to 29m-- elusive, the first movement of the cord layer frominitial position shown in Fi 4-resultingin drawing the finger 220 into the position in which it engages the arm 204. Immediately upon cutting the cord' thefinger flies out as indicated inFig.' 30, the cut end 222 being pulled fromvbeneath the clampingplate 206. y To open the cord-holding jaws either fior the purpose of removing` the held end of thethread or inserting a new end to be held ahandlever 223 is pivoted at 224 to the frame and has a toe 225 adapted tocngage the arm 203 and move the same against the force ofspring 208 into open position. If at. anytime it is desirable to start the cord-laying apparatus without running the bag through the machine this may readily be done by drawing forward the rod .45 against the action ofnspring 70, there- `by clutching the cam drum to the operating gear 48. p

The operation of my device has been'I qpite fully given. in connection withpthe detailed 'description thereof. The meansy for' feeding the sack and crimpin the-neck hereof and thereby connecting t e'canji an 'drum followed by the disconnection =Dif-the feeding means and the compactinv and holding of the neck of the sack upon the' tying plate have been very fully pointed out.- The proessive operation of the cord-laying'memrs to form the knot is illustrated very Awell in Figs. 4, 6 and 25 to 30 inclusiveithe cirfore a sack has been fed and be ore the cam.

cles shown in dotted lincsin these several figures representing the' path of the deliv-` ery end 128 of the cord layer. As shown in Fig. 4, the parts are in initial osltionI bedrum 51 has been operated, the cord 119 running from the supply to the cord layer and from the end ofthe cord layer to the gripping mechanism. As illustrated in Fig. 6, the -Sack neck 118 has been-compacted and i's held projecting above the tying plate..

The cord layer 128 has completed its first shown inl Fig. 2 7 to that shown in t of the circular.

previousl 21 down upon t e loop in hooks 152 and .have drawn back the loop from said hooks lposition indicated in Fig.\

outside of the path of cord layer 128 so that j v as the same moves onward tothe position@y indicated in Fig. 26 the second loop of cordE can be laid in hooks, 152. Immediately' .thereafter lthe hook 174 has been lifted andi also'the lifterbars 168, 169 so that the loop, i drawn backA by hook 174 is now free to slide'.

off of said lifter bars over the hooks 152,

thus being crossed over the second loop beijnglaid, as shown in Fi 27. At this point the cord-gripping mem er 137 engages-the cord as it' comes from the-supply 120 andV as the cord -layer passes from the ig.128. Owing to the eccentricit path of the cord layer re ative to the een:

ter of the compacted neck, the cord will pull i the loops 'already laid firmly upon the comvpacted neck, taking up any slack there may y be. The operations are repeated during the ,third looping action ofthe cord layer, a second loop being 'crossed over the loops 1 formed while the third loop is o@ 1 oA Here the cord layer in passing from the relheld in `t e hooks 152, as shown in Fig. 29.

:itive position shown in Fig. 27 to that of F ig. 29 has operated to pull thegknot thus lformed tight and hard. As the-.cord layer "continues from the position shown 1n Fig.

osition 29 to the initialposition of Fig. 30,3the cord holder and cutter is oscillated first to the held end of the cord 222 and permitting finger 220 to pull the same out, and then the cord holder and cutter is'returned to initial` position shown in Fig. 16, thus releasing the i position, severing the cord and regripping?v ai theend running -to the cord layer. At thel same time the cam drum 51 hascompleted its revolution andthe linger 62 engages finger 63, thusvwithdrawing dog 59 from ratchet 50y and terminating operation of the cordlaying and tying members, leaving the parts'f 1n the initial operative position as shown* in Figs. 4 and 30. At the same time the' finger 112 andthe pusher 101. are retracted,`

the feeding operation ofv belt 7 recommence;

and the tied neck of the sack is `readily'with' drawn from the enlarged passageway' ing the operation.

The advantages of my inventioi'ifwill'ibe"` apparent. vThe cord-laying member operating eccentrically with respect to the center of the compacted neck of the sack performs 

